LXR linux/arch/s390/oprofile/hwsampler.h

   1/*
   2 * CPUMF HW sampler functions and internal structures
   3 *
   4 *    Copyright IBM Corp. 2010
   5 *    Author(s): Heinz Graalfs <graalfs@de.ibm.com>
   6 */
   7
   8#ifndef HWSAMPLER_H_
   9#define HWSAMPLER_H_
  10
  11#include <linux/workqueue.h>
  12
  13struct hws_qsi_info_block          /* QUERY SAMPLING information block  */
  14{ /* Bit(s) */
  15        unsigned int b0_13:14;      /* 0-13: zeros                       */
  16        unsigned int as:1;          /* 14: sampling authorisation control*/
  17        unsigned int b15_21:7;      /* 15-21: zeros                      */
  18        unsigned int es:1;          /* 22: sampling enable control       */
  19        unsigned int b23_29:7;      /* 23-29: zeros                      */
  20        unsigned int cs:1;          /* 30: sampling activation control   */
  21        unsigned int:1;             /* 31: reserved                      */
  22        unsigned int bsdes:16;      /* 4-5: size of sampling entry       */
  23        unsigned int:16;            /* 6-7: reserved                     */
  24        unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
  25        unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
  26        unsigned long tear;         /* 24-31: TEAR contents              */
  27        unsigned long dear;         /* 32-39: DEAR contents              */
  28        unsigned int rsvrd0;        /* 40-43: reserved                   */
  29        unsigned int cpu_speed;     /* 44-47: CPU speed                  */
  30        unsigned long long rsvrd1;  /* 48-55: reserved                   */
  31        unsigned long long rsvrd2;  /* 56-63: reserved                   */
  32};
  33
  34struct hws_ssctl_request_block     /* SET SAMPLING CONTROLS req block   */
  35{ /* bytes 0 - 7  Bit(s) */
  36        unsigned int s:1;           /* 0: maximum buffer indicator       */
  37        unsigned int h:1;           /* 1: part. level reserved for VM use*/
  38        unsigned long b2_53:52;     /* 2-53: zeros                       */
  39        unsigned int es:1;          /* 54: sampling enable control       */
  40        unsigned int b55_61:7;      /* 55-61: - zeros                    */
  41        unsigned int cs:1;          /* 62: sampling activation control   */
  42        unsigned int b63:1;         /* 63: zero                          */
  43        unsigned long interval;     /* 8-15: sampling interval           */
  44        unsigned long tear;         /* 16-23: TEAR contents              */
  45        unsigned long dear;         /* 24-31: DEAR contents              */
  46        /* 32-63:                                                        */
  47        unsigned long rsvrd1;       /* reserved                          */
  48        unsigned long rsvrd2;       /* reserved                          */
  49        unsigned long rsvrd3;       /* reserved                          */
  50        unsigned long rsvrd4;       /* reserved                          */
  51};
  52
  53struct hws_cpu_buffer {
  54        unsigned long first_sdbt;       /* @ of 1st SDB-Table for this CP*/
  55        unsigned long worker_entry;
  56        unsigned long sample_overflow;  /* taken from SDB ...            */
  57        struct hws_qsi_info_block qsi;
  58        struct hws_ssctl_request_block ssctl;
  59        struct work_struct worker;
  60        atomic_t ext_params;
  61        unsigned long req_alert;
  62        unsigned long loss_of_sample_data;
  63        unsigned long invalid_entry_address;
  64        unsigned long incorrect_sdbt_entry;
  65        unsigned long sample_auth_change_alert;
  66        unsigned int finish:1;
  67        unsigned int oom:1;
  68        unsigned int stop_mode:1;
  69};
  70
  71struct hws_data_entry {
  72        unsigned int def:16;        /* 0-15  Data Entry Format           */
  73        unsigned int R:4;           /* 16-19 reserved                    */
  74        unsigned int U:4;           /* 20-23 Number of unique instruct.  */
  75        unsigned int z:2;           /* zeros                             */
  76        unsigned int T:1;           /* 26 PSW DAT mode                   */
  77        unsigned int W:1;           /* 27 PSW wait state                 */
  78        unsigned int P:1;           /* 28 PSW Problem state              */
  79        unsigned int AS:2;          /* 29-30 PSW address-space control   */
  80        unsigned int I:1;           /* 31 entry valid or invalid         */
  81        unsigned int:16;
  82        unsigned int prim_asn:16;   /* primary ASN                       */
  83        unsigned long long ia;      /* Instruction Address               */
  84        unsigned long long gpp;     /* Guest Program Parameter           */
  85        unsigned long long hpp;     /* Host Program Parameter            */
  86};
  87
  88struct hws_trailer_entry {
  89        unsigned int f:1;           /* 0 - Block Full Indicator          */
  90        unsigned int a:1;           /* 1 - Alert request control         */
  91        unsigned long:62;           /* 2 - 63: Reserved                  */
  92        unsigned long overflow;     /* 64 - sample Overflow count        */
  93        unsigned long timestamp;    /* 16 - time-stamp                   */
  94        unsigned long timestamp1;   /*                                   */
  95        unsigned long reserved1;    /* 32 -Reserved                      */
  96        unsigned long reserved2;    /*                                   */
  97        unsigned long progusage1;   /* 48 - reserved for programming use */
  98        unsigned long progusage2;   /*                                   */
  99};
 100
 101int hwsampler_setup(void);
 102int hwsampler_shutdown(void);
 103int hwsampler_allocate(unsigned long sdbt, unsigned long sdb);
 104int hwsampler_deallocate(void);
 105unsigned long hwsampler_query_min_interval(void);
 106unsigned long hwsampler_query_max_interval(void);
 107int hwsampler_start_all(unsigned long interval);
 108int hwsampler_stop_all(void);
 109int hwsampler_deactivate(unsigned int cpu);
 110int hwsampler_activate(unsigned int cpu);
 111unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu);
 112
 113#endif /*HWSAMPLER_H_*/
 114